[cleanup] remove IsbnBot.run method
[cleanup] remove IsbnBot.run method

IsbnBot is derived from Bot class which has a common run method
and calls Bot.treat method with page parameter. It is not necessary
to have an additional run method to override the default behavior.

Change-Id: Ic5f437dc3eb764d7180f377a9fe56c7357958fec

PersianWikipedia/pywikibot-core,wikimedia/pywikibot-core,wikimedia/pywikibot-core